use IAPIWidget instead of IWidget to implement dashboard api for clients

Signed-off-by: Julien Veyssier <eneiluj@posteo.net>

appinfo/info.xml

@@ -21,7 +21,7 @@
         <database min-version="9.4">pgsql</database>
         <database>sqlite</database>
         <database min-version="5.5">mysql</database>
-        <nextcloud min-version="20" max-version="22"/>
+        <nextcloud min-version="22" max-version="22"/>
     </dependencies>
     <settings>
         <admin>OCA\Github\Settings\Admin</admin>

lib/Dashboard/GithubWidget.php

@@ -23,18 +23,21 @@
 
 namespace OCA\Github\Dashboard;
 
-use OCP\Dashboard\IWidget;
+use OCP\Dashboard\IAPIWidget;
 use OCP\IL10N;
 use OCA\Github\AppInfo\Application;
+use OCA\Github\Service\GithubAPIService;
 
-class GithubWidget implements IWidget {
+class GithubWidget implements IAPIWidget {
 
 	/** @var IL10N */
 	private $l10n;
 
 	public function __construct(
+		GithubAPIService $githubAPIService,
 		IL10N $l10n
 	) {
+		$this->githubAPIService = $githubAPIService;
 		$this->l10n = $l10n;
 	}
 
@@ -80,4 +83,11 @@ class GithubWidget implements IWidget {
 		\OC_Util::addScript(Application::APP_ID, 'integration_github-dashboard');
 		\OC_Util::addStyle(Application::APP_ID, 'dashboard');
 	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getItems(string $userId, ?string $since = null, int $limit = 7): array {
+		return $this->githubAPIService->getWidgetItems($userId, $since, $limit);
+	}
 }

lib/Service/GithubAPIService.php

@@ -12,9 +12,14 @@
 namespace OCA\Github\Service;
 
 use OCP\IL10N;
+use OCP\IConfig;
 use Psr\Log\LoggerInterface;
 use OCP\Http\Client\IClientService;
 
+use OCP\Dashboard\Model\WidgetItem;
+
+use OCA\Github\AppInfo\Application;
+
 class GithubAPIService {
 
 	private $l10n;
@@ -23,19 +28,53 @@ class GithubAPIService {
 	/**
 	 * Service to make requests to GitHub v3 (JSON) API
 	 */
-	public function __construct (
-		string $appName,
-		LoggerInterface $logger,
-		IL10N $l10n,
-		IClientService $clientService
-	) {
+	public function __construct (string $appName,
+								LoggerInterface $logger,
+								IL10N $l10n,
+								IConfig $config,
+								IClientService $clientService) {
 		$this->appName = $appName;
 		$this->l10n = $l10n;
+		$this->config = $config;
 		$this->logger = $logger;
 		$this->clientService = $clientService;
 		$this->client = $clientService->newClient();
 	}
 
+	public function getWidgetItems(string $userId, ?string $since = null, int $limit = 7): ?array {
+		$token = $this->config->getUserValue($userId, Application::APP_ID, 'token', '');
+		$notifications = $this->getNotifications($token, $since, false);
+		if (isset($notifications['error'])) {
+			return [];
+		} else {
+			$notifications = array_slice($notifications, 0, $limit);
+			return array_map(function (array $notification) use ($token) {
+				$title = $notification['subject']['title'] ?? '';
+
+				$subtitle = $notification['repository']['name'] ?? '';
+				if (in_array($notification['subject']['type'] ?? '', ['PullRequest', 'Issue']) && $notification['subject']['url']) {
+					$parts = explode('/', $notification['subject']['url']);
+					$subtitle .= ' #' . $parts[count($parts) - 1];
+				}
+
+				$iconUrl = ($notification['repository']['owner']['login'] ?? false)
+					? $this->getAvatarUrl($token, $notification['repository']['owner']['login'])
+					: '';
+
+				$sinceId = $notification['updated_at'] ?? '';
+				return new WidgetItem($title, $subtitle, $iconUrl, $sinceId);
+			}, $notifications);
+		}
+	}
+
+	private function getAvatarUrl(string $accessToken, string $githubUserName): ?string {
+		$userInfo = $this->request($accessToken, 'users/' . $githubUserName);
+		if (!isset($userInfo['error']) && isset($userInfo['avatar_url'])) {
+			return $userInfo['avatar_url'];
+		}
+		return null;
+	}
+
 	/**
 	 * Request an avatar image
 	 * @param string $accessToken
@@ -43,9 +82,9 @@ class GithubAPIService {
 	 * @return ?string Avatar image data
 	 */
 	public function getAvatar(string $accessToken, string $githubUserName): ?string {
-		$userInfo = $this->request($accessToken, 'users/' . $githubUserName);
-		if (!isset($userInfo['error']) && isset($userInfo['avatar_url'])) {
-			return $this->client->get($userInfo['avatar_url'])->getBody();
+		$avatarUrl = $this->getAvatarUrl($accessToken, $githubUserName);
+		if ($avatarUrl) {
+			return $this->client->get($avatarUrl)->getBody();
 		}
 		return null;
 	}